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A CT scan is a type of imaging test. It uses X-rays and computer technology to make images of the body. A CT scan can make detailed pictures of any part of the body, including the bones, muscles, fat, organs, and blood vessels. The images are more detailed than regular X-rays.

A gallbladder scan is an imaging test to look at your gallbladder and see how well it is working. This test may also be called a liver-biliary scan because the doctor often looks at the liver at the same time. The liver is near the gallbladder and works closely with it.

A sigmoidoscopy is a diagnostic test to check the lower part of your colon or large intestine (the sigmoid colon). This part of your colon is close to your rectum and anus.

An antegrade pyelogram is an imaging test to find a blockage (obstruction) in the upper urinary tract. Read on to learn about what to expect before, during, and after this test.

A prostate biopsy is done after other tests show that there may be a problem with the prostate gland. It is the best method to diagnose prostate cancer. Read on to learn what to expect before, during, and after the procedure.

Retrograde cystography is an imaging test that uses X-rays with contrast dye so the radiologist can see your organ or tissues more clearly. Learn more about this test, including what to expect before, during, and after the test.

A breast scan is an imaging test to look at your breasts. It is used when a mammogram has not given your doctor enough information.

A cervical biopsy is a procedure to remove tissue from the cervix to test for abnormal or precancerous conditions, or cervical cancer.

Your healthcare provider uses colposcopy to view the opening to the uterus, called the cervix, and the vagina. Your provider uses an instrument with a magnifying lens and a light, called a colposcope.